Friedhelm Kartzinski, a German snack cucumber grower, has encountered many irrigation water problems in the past year. Pythium in particular is a recurring problem. The growers from Weener worked with EVE Techniek to find a solution that was found in an improved water system that had been disinfected by ultraviolet light. Even three days of heat with excessive evaporation will not cause problems.

As Marco Evers and Piet Veenstra of EVE Techniek know, in the past, growers had to catch up with watering because his system couldn't handle it. Marco: "Plants evaporate faster than the system can supply water to them. By adjusting the system from nine faucet parts to four faucet parts, the system is now more at ease and growers can complete their work faster, even in very hot In the weather."

Friedheim nodded. He said that three days above 30 degrees Celsius on the thermometer was no problem for him this summer, but it was a good test for his new system. "The evaporation capacity is 9 liters per square meter, but my new system calculates the maximum evaporation capacity of 7 liters square meters. In the end, this is not a problem because the system can handle it well."

Friedhelm Kartzinski (left) and Piet Veenstra (right) and the Priva Vialux MDUV installation, which is part of the new irrigation system installed by EVE Techniek for growers.

The grower of the Pythium snack cucumber is connected to a loop that provides him with water, just like many other growers in the greenhouse gardening area near Papenburg. The water comes from the Ems River, on which the Meyer Werft shipyard is also located. Standing in the greenhouse, Friedheim can see the cruise ship. Friedhelm: "I'm at the end of the cycle, which causes great fluctuations in water quality." Marco agreed. "Sometimes his water is dirtier and darker than other people's water. The subsequent water tests he conducted showed that Pythium is a particular problem."

Marco Evers of EVE Techniek explains the system to Friedhelm

The circulatory system therefore decided to focus on the proper cleaning and disinfection of the water entering the greenhouse. Marco and Piet completed the installation and discussed many process steps. "It all starts with water entering from the loop under pressure. Even before it passes through the sand filter, we have added hydrogen peroxide to the new system. This is how we break down the first particles."

The water from the loop enters "under pressure". The litre counter in the photo ensures that the correct dose of hydrogen peroxide is used.

Automatic backwash built-in ascending counter to ensure correct dosage. Piet: "It controls the pump. After adding the first dose of hydrogen peroxide, the water passes through the sand filter. Then the sand filter is flushed every once in a while to keep it running. Marco: "This is also automatic. The Priva Connext computer monitors this process and knows how many cubic meters of flushing water is needed. The grower discharges the washed water into the sewer system. If necessary, he can adjust the settings himself and flush more or less. "

Here, the hydrogen peroxide Huwasan was added for the first time in the process

After the snack cucumbers pass through the sand filter, the water flows from one side of the aisle to the other in the one-hectare greenhouse. At the same time, Friedhelm talked about the company's history. As the name suggests, his family is from East Germany. His father left in the early 1960s, at the time of the Berlin Wall, and at the request of the government began to grow crops in northwestern Germany. “He first planted cut flowers and then potted plants. After I joined the company, we switched to snack cucumbers in 2012.”

The water rises along the ladder conveyor belt and is used in the subsequent stages of the cleaning and disinfection process

Gartenbau Kartzinski was the first company in the Papenburg region to do so. Friedhelm: "The greenhouse covers an area of ​​one hectare. We are too small to grow ordinary cucumbers profitably. Now, there are a few growers who grow snack cucumbers."

First go back to the watering system. Marco knows that Friedhelm is also the first person in this area. "He is the first grower here to choose the Priva Vialux MDUV device." The device draws water from the silo through the use of a sand filter and hydrogen peroxide, after the first filtration process. "In this unit, there are four UV-C lamps for cleaning and disinfecting water. Before the water passes there, we inject hydrogen peroxide a second time."

To ensure that the UV-C lamp is kept clean, the PH value of the water is closely monitored. When the installation starts, the water passing through the UV-C lamp will return to the dirt silo. Piet: “We repeat the above UV-C disinfection process until the UV-C lamp reaches its maximum intensity. Only then will the V5 valve in the installation open and start the regular cleaning and disinfection process. The grower has completed the daily supply of water stored in In a separate silo."

The device can process 4 to 8 cubic meters of water per hour, depending on the degree of dirtyness of the influent water from the loop circuit. Even this summer, accompanied by three hot days, proves this point.

Gartenbau Kartzinski last harvest in 2021

Certainty Friedhelm has no plans to further expand the planting area. Therefore, using the current system, he is ready to grow snack cucumbers for many years without the problem of Pythium. But first, it's time for crop rotation. This year, due to the energy crisis, the crop rotation started one week earlier: the last box of snack cucumbers was shipped to Gartenbau Zentrale Papenburg in week 41. In February and March, Friedhelm will start planting again, and his products are already in 2022. This provides safety, as does his new watering system.

For more information: Friedhelm Kartzinski Friedhelm Kartzinski Gartenbau Halte 16 26826 Weener

Marco Evers en Piet Veenstra EVE Techniek Heemst 4 7892 AL Klazienaveen info@eve-techniek.nl www.eve-techniek.nl 

We ask you to fill in all text fields marked with *.

Receive free daily newsletter in your email | Click here

Other news in this area:

<< Back | Gardening Daily

Sign up for our daily newsletter to stay up to date with all the latest news!

You are receiving this pop-up window because this is your first visit to our website. If you keep receiving this message, please enable cookies in your browser.